<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <script type="text/javascript" src="../helper.js"></script>
</head>
<body>
  <style type="text/css">
    .box {
      width: 100px;
      height: 80px;
      border: 1px solid black;
      margin: 10px;
      float: left;
    }
    
    .clear {
      clear: both;
    }
  </style>

  <div id="box1_1" class="box"></div>
  <div id="box1_2" class="box"></div>
  <div id="box1_3" class="box"></div>
  <div id="box1_4" class="box"></div>
  <div id="box1_5" class="box"></div>
  <div id="box1_6" class="box"></div>
  <div id="box1_7" class="box"></div>
  <div id="box1_8" class="box"></div>

  <div id="box2_1" class="box clear"></div>
  <div id="box2_2" class="box"></div>
  <div id="box2_3" class="box"></div>
  <div id="box2_4" class="box"></div>
  <div id="box2_5" class="box"></div>
  <div id="box2_6" class="box"></div>
  <div id="box2_7" class="box"></div>
  <div id="box2_8" class="box"></div>

</body>
</html>
